Seeking clarity on 14th week vaccine.

I was getting vaccine for my "3 month old infant son" in Hyderabad, but due to travel I now need to get vaccine done from another city. He has been given vaccine upto 10 weeks and yet to receive 14th week/4th month vaccine. I have attached his vaccine schedule for reference, I need humble advice on 2 queries: (1). Should he be given either either IPV or OPV , or both. Doctor in my hometown suggests that only IPV is needed which is part of injection, no explicit OPV is required (but previous doctor in Hyderabad also administered additional OPV along with injection, so I am confused here)? , (2). Previous doctor in Hyderabad gave painless vaccination but doctor in my hometown suggested to change next vaccine to simple one as per him it creates better immunity. So, should I now change it to simple vaccine and different brand for 14th week? Currently, my son has received "Hexaxim + Prevenar + Rotarix" , in 6th and 10th week. I want to seek advice for 14th week on above two queries.